doctorbeta Posted June 15, 2010 Report Share Posted June 15, 2010 Just a discussion point. Lots on here about using super unleaded as opposed to straight unleaded, which I can see in the case of fairly high compression ratios. i.e. a Rev3 is about 11 point something to 1 (I think ), but my 250 Evo is only 8.9 to 1. Just wondered where the advantage comes for those extra pence per litre. Quote Link to comment Share on other sites More sharing options...
chewy Posted June 15, 2010 Report Share Posted June 15, 2010 don't know what I'm supposed to be using but I always buy cheapest ( I assume thats unleaded) afor my 200 and it runs fine. Quote Link to comment Share on other sites More sharing options...
benz19 Posted June 15, 2010 Report Share Posted June 15, 2010 Just a discussion point. Lots on here about using super unleaded as opposed to straight unleaded, which I can see in the case of fairly high compression ratios. i.e. a Rev3 is about 11 point something to 1 (I think ), but my 250 Evo is only 8.9 to 1. Just wondered where the advantage comes for those extra pence per litre. To my knowledge and experience,SUPER unleaded or higher octaine fuel,will make the bike crisper and run slightly smoother,no more power,just cleaner burning! Its worth buying a tank full and trying it! Benz Quote Link to comment Share on other sites More sharing options...
evoboy Posted June 15, 2010 Report Share Posted June 15, 2010 what about using optimax??? Quote Link to comment Share on other sites More sharing options...
hrcmonty Posted June 15, 2010 Report Share Posted June 15, 2010 (edited) Simple, For any Internal combustion engine, whether it be Cetaine for diesel or octane for petrol. The higher the Octane number the better. In basic terms, you get much better throttle response as the flash point is higher. Burns a lot cleaner so no big carbon build up. And it does give a slight BHP increase. i would suggest any one using either BP Ultimate or Shell optimax which i think is a couple of octane higher than BP. Simply try it, you will notice a difference. And if you want a bit more, you can get some Putoline Octance booster, which will make your octane figure around 102ish. Honestly Try it. Here is a good explanation to understand Engine Knock. http://www.torquecars.com/articles/fuel-octane-ratings.php Edited June 15, 2010 by hrc_monty Quote Link to comment Share on other sites More sharing options...
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